Home / 7,020.57-10,530.86-2,090.28

Finding the Fourth Proportional to 7,020.57, 10,530.86 and 2,090.28

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Solution

The fourth proportional to 7,020.57, 10,530.86 and 2,090.28 is: 3,135.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,020.57 : 10,530.86 = 2,090.28 : x
  2. Step 2: Convert to fraction form
    7,020.57/10,530.86 = 2,090.28/x
  3. Step 3: Cross multiply
    7,020.57x = 10,530.86 × 2,090.28
  4. Step 4: Simplify right side
    7,020.57x = 22,012,446.04
  5. Step 5: Solve for x
    x = 22,012,446.04/7,020.57
  6. Step 6: Final answer
    x = 3,135.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.